$189 Cheap Flights from Kathmandu (KTM) to Singapore (SIN)

View $189 flight on Tue, Jul 1, 2025Opens in a new window

Popular airlines from Tribhuvan Intl. Airport (KTM) to Singapore Changi Airport (SIN)

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Cheap Flights from Kathmandu to Singapore (KTM-SIN)

Prices were available within the past 7 days and start at $189 for one-way flights and $334 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

IndiGo
Tue, Jul 1 - Tue, Jul 8
KTM
Kathmandu
SIN
Singapore
$334 Roundtrip, found 10 hours ago
$334
Roundtrip
found 10 hours ago
Select IndiGo flight, departing Tue, Jul 1 from Kathmandu to Singapore, returning Tue, Jul 8, priced at $334 found 10 hours ago
IndiGo
Mon, Jun 30 - Sun, Jul 6
KTM
Kathmandu
SIN
Singapore
$335 Roundtrip, found 16 hours ago
$335
Roundtrip
found 16 hours ago
Select IndiGo flight, departing Mon, Jun 30 from Kathmandu to Singapore, returning Sun, Jul 6, priced at $335 found 16 hours ago
IndiGo
Tue, Jul 1 - Tue, Jul 8
KTM
Kathmandu
SIN
Singapore
$336 Roundtrip, found 10 hours ago
$336
Roundtrip
found 10 hours ago
Select IndiGo flight, departing Tue, Jul 1 from Kathmandu to Singapore, returning Tue, Jul 8, priced at $336 found 10 hours ago
IndiGo
Tue, Jul 15 - Mon, Jul 21
KTM
Kathmandu
SIN
Singapore
$341 Roundtrip, found 3 days ago
$341
Roundtrip
found 3 days ago
Select IndiGo flight, departing Tue, Jul 15 from Kathmandu to Singapore, returning Mon, Jul 21, priced at $341 found 3 days ago
IndiGo
Tue, Jul 15 - Sun, Jul 20
KTM
Kathmandu
SIN
Singapore
$342 Roundtrip, found 5 days ago
$342
Roundtrip
found 5 days ago
Select IndiGo flight, departing Tue, Jul 15 from Kathmandu to Singapore, returning Sun, Jul 20, priced at $342 found 5 days ago
IndiGo
Mon, Jul 21 - Thu, Jul 24
KTM
Kathmandu
SIN
Singapore
$353 Roundtrip, found 1 day ago
$353
Roundtrip
found 1 day ago
Select IndiGo flight, departing Mon, Jul 21 from Kathmandu to Singapore, returning Thu, Jul 24, priced at $353 found 1 day ago
Singapore Airlines
Wed, Jan 21 - Wed, Jan 28
KTM
Kathmandu
SIN
Singapore
$412 Roundtrip, found 1 day ago
$412
Roundtrip
found 1 day ago
Select Singapore Airlines flight, departing Wed, Jan 21 from Kathmandu to Singapore, returning Wed, Jan 28, priced at $412 found 1 day ago
SriLankan Airlines
Thu, Jul 24 - Sat, Jul 26
KTM
Kathmandu
SIN
Singapore
$428 Roundtrip, found 4 days ago
$428
Roundtrip
found 4 days ago
Select SriLankan Airlines flight, departing Thu, Jul 24 from Kathmandu to Singapore, returning Sat, Jul 26, priced at $428 found 4 days ago
China Southern Airlines
Mon, Aug 11 - Sat, Aug 16
KTM
Kathmandu
SIN
Singapore
$529 Roundtrip, found 5 days ago
$529
Roundtrip
found 5 days ago
Select China Southern Airlines flight, departing Mon, Aug 11 from Kathmandu to Singapore, returning Sat, Aug 16, priced at $529 found 5 days ago
Air China
Fri, Jul 4 - Mon, Jul 7
KTM
Kathmandu
SIN
Singapore
$546 Roundtrip, found 2 days ago
$546
Roundtrip
found 2 days ago
Select Air China flight, departing Fri, Jul 4 from Kathmandu to Singapore, returning Mon, Jul 7, priced at $546 found 2 days ago
Flights from Kathmandu (KTM) to Singapore (SIN)
Origin airport
Tribhuvan Intl.
Destination airport
Changi
Airlines serving
Air China, Air India, Cathay Pacific, IndiGo, Malaysia Airlines, Sichuan Airlines, Singapore Airlines, SriLankan Airlines, Thai Airways International
Roundtrip price
$334
Distance
2198 mi
Average flight time
5 hours 5 mins

Kathmandu to Singapore Flights

The cheapest times to fly from Kathmandu to Singapore

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Kathmandu to Singapore are during the month of July. You can find some of the cheapest flights from Kathmandu to Singapore with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Kathmandu to Singapore

Sunday is one of the best days to book for cheap flights from Kathmandu to Singapore: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Kathmandu to Singapore

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Kathmandu to Singapore in 2025. You can also book with separate airlines for your outbound and return journeys, from $189 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Kathmandu to Singapore flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Kathmandu to Singapore airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Frequently asked questions

How much does a flight from Tribhuvan Intl. Airport (KTM) to Changi Airport (SIN) cost?
You can pick up cheap return fares starting from $412 from Tribhuvan Intl. Airport (KTM) to Changi Airport (SIN). This information is based on the cheapest price found on Expedia for this return journey departing within the next three months. This airfare is for a Singapore Airlines flight leaving KTM on July 9 2025 and touching down at SIN. The price was last updated on June 14 2025 and has not changed since.
What is the cheapest month to fly from KTM to SIN?
The cheapest flights from KTM to SIN are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
Which airlines fly direct from Tribhuvan Intl. Airport (KTM) to Changi Airport (SIN)?
If you’re departing from Tribhuvan Intl. Airport (KTM), you can catch a direct flight to Changi Airport (SIN) with Singapore Airlines.
What is the cheapest airline that flies from KTM to SIN?
Take off from KTM to SIN with Singapore Airlines. This airline currently offers the lowest one-way fare on this route, starting from $217. This fare is based on the lowest price found on Expedia departing within the next three months. The flight takes off from KTM on September 3 2025. Prices were last updated on June 14 2025 and have not changed since.
How many flights per day from Tribhuvan Intl. Airport (KTM) to Changi Airport (SIN)?
On average, Tribhuvan Intl. Airport (KTM) only offers 1 nonstop flight to Changi Airport (SIN) each day. For additional options, try our easy-to-use filters. Simply enter your preferred travel dates, then click on “1 Stop” or “2+ Stops” to find flights offering layovers.
What are the most popular departure times for flights from Tribhuvan Intl. Airport (KTM) to Changi Airport (SIN)?
The 9 PM departures from KTM to SIN see the highest demand. Prices can be higher for these popular slots. If you want to save on your trip, pick a less crowded time to fly.
What day of the week has the most flights from KTM to SIN?
Fly on a Friday if you’re after the best choice of flights from Tribhuvan Intl. Airport (KTM) to Changi Airport (SIN).
What is the earliest flight from Tribhuvan Intl. Airport (KTM) to Changi Airport (SIN)?
Catch the earliest flight at around 9:10PM UTC+5, leaving from Tribhuvan Intl. Airport (KTM). You’ll be flying for roughly 5h, touching down at Changi Airport (SIN) at approximately 4:25AM UTC+8.
How long does it take to fly from Tribhuvan Intl. Airport (KTM) to Changi Airport (SIN)?
The average flight time from KTM to SIN is 5 hours, covering a distance of 2,200 mi.
What is the best time to fly from Tribhuvan Intl. Airport (KTM) to Changi Airport (SIN)?
Choose a flight from Tribhuvan Intl. Airport (KTM) to Changi Airport (SIN) that leaves before 3 PM to reduce the likelihood of delays and cancellations. Departures after this time are on average 22% more likely to be canceled.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG’s global flight data platform.
What airports do you fly into for Singapore from Tribhuvan Intl. Airport (KTM)?
Compare your flight options from Tribhuvan Intl. Airport (KTM) to Changi Airport (SIN). This is the only airport in Singapore you can touch down at if you’re taking a direct flight.
Is it cheaper to buy a plane ticket from Tribhuvan Intl. Airport (KTM) to Changi Airport (SIN) last-minute?
Last-minute bookings from KTM to SIN are generally more expensive. To lock in the lowest prices, start searching for flights ahead of time. That being said, if your travel plans are flexible, it’s possible to find a cheap fare just before your departure.
Is it cheaper to book a KTM to SIN flight and hotel package?
Compared with arranging hotels and flights separately, booking a KTM to SIN flight and hotel package with Expedia could result in significant savings. Better yet, having everything in one convenient place will take the stress out of planning your trip. Just pick your flights and select from our wide range of stays, then tailor your trip with extras like car rentals and activities.
Can I cancel or change the date of my flight from Tribhuvan Intl. Airport (KTM) to Changi Airport (SIN)?
In most cases, you can reschedule or cancel your KTM to SIN flight. However, additional charges may apply, especially if your booking was made over 24 hours ago. Double-check your itinerary for the airline’s fees and policies on flight changes, or if you need more details, visit our Customer Service portal.

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*Available to One Key members.